bald

1having little or no hair on the headHe started going bald in his twenties.

2without any of the usual hair, marks, etc. covering the skin or surface of somethingOur dog has a bald patch on its leg.a bald tire (= a tire whose surface has become smooth)

3without any extra explanation or detail to help you understand or accept what is being saidThe bald truth is that we don't need you any longer.The letter was a bald statement of our legal position.see alsobaldly